[erlang-questions] Specs
Kostis Sagonas
kostis@REDACTED
Tue Jun 7 22:40:46 CEST 2011
James Churchman wrote:
> Hi guys
>
> When you parse a file with the epp module it has no problems with specs
>
> However when using erl_scan then passing on to erl_parse, in order to parse a string not a file, it fails on -specs in the code
>
> Is there a spec aware version of the erl_parse module ?
I find this question a bit strange... the erl_parse module *is* spec
aware. This is actually how specs are parsed in the system.
Does the following do what you want?
42> SpecInString = "-spec my_function(some_type()) -> 42 | 'gazonk'.",
42> {ok, Toks, 1} = erl_scan:string(SpecInString),
42> erl_parse:parse_form(Toks).
{ok,{attribute,1,spec,
{{my_function,1},
[{type,1,'fun',
[{type,1,product,[{type,1,some_type,[]}]},
{type,1,union,[{integer,1,42},{atom,1,gazonk}]}]}]}}}
Kostis
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